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Systems Administrator with Security Clearance
Applied Network SolutionsAurora, CO🇺🇸United StatesPosted 26 Jul 2026
Why This Role Stands Out
This hybrid role offers a highly competitive salary of $100,000-$200,000 and the opportunity to contribute to cutting-edge cybersecurity solutions with a reputable company. You'll thrive here if you possess strong Linux/UNIX/Windows administration skills, a TS/SCI with polygraph clearance, and a passion for ensuring system availability and security. Apply to join a team dedicated to technical excellence and solving critical national challenges.
Quick Overview
Salary
$100k - $200k/yr
Work Type
Hybrid
Level
Mid Senior
Job Description
Who we are: At Applied Network Solutions (ANS), we bring together some of the most curious minds in networking and cybersecurity. ANS was founded to disrupt the status quo. For over 20 years, our team provides expertise in network, system engineering and both offensive and defensive cybersecurity operations. What we do: Our vision is for a future in which talent and customers alike come to ANS because of our reputation for delivering technical excellence, solving our nation’s toughest challenges and our ability to exceed expectations. Why ANS: At ANS we value the integrity of your work. We are looking for the right person to plan, analyze, design, develop, test, secure, integrate, implement, operate, and maintain the custom solutions that ANS delivers. Together, let’s ensure today is safe and tomorrow is smarter. ANS is currently seeking a Linux / UNIX / Windows System Administrator that will provide Tier 2 technical support to maintain high priority operational systems at a high level of availability, and resolve problems based on mission criticality and guidance. This position is an 8:00 AM to 5:00 PM position (with after-hours call-in responsibility). Requirements
Clearance Type: An active and in-scope TS/SCI with polygraph U.S. security clearance
Qualified applicants may be subject to a security investigation and must meet minimum qualifications for access to classified information
Must have a current DODI 8570.01-M IAT Level II (minimum) Certification (i.e., Security+ CE or equivalent)
Required Education: A University degree and 5 years of relevant experience, OR
A Master's degree and 3 years of relevant experience OR
13 years of related experience in lieu of a degree
Military experience may substitute for some requirements. Military technical certification credit for military experience (*military personnel who have been formally trained or have relevant experience obtained while in service versus civilian training)
Required Skills: Working experience in UNIX or Linux Systems Administration working with customers in technical operations or engineering
Experience configuring domain information utilities, such as Active Directory, Centrify, LDAP, and DNS
Strong background and experience troubleshooting and debugging applications
Experience presenting technical information to customers, clients and/or internal audiences
A thorough understanding of operating system concepts such as swapping and paging, inter-process communication, and devices and device drivers
The ability to work effectively with frequent and direct customer interaction in a real-time operational environment
The ability to work under pressure in restoring high priority systems back to operations
Desired Skills: Ability to navigate, debug, and modify programs in an advanced programming language
Ability to write PERL, python, and shell scripts
Experience with storage products from Oracle/Sun/STK, EMC, IBM, NetApp, and/or DDN
Experience with virtual / cloud computing technologies using Citrix, VMware, and Amazon Web Services (AWS)
Working knowledge of thin-client technologies
Experience designing, implementing, and troubleshooting Public Key Infrastructure (PKI)
Duties and responsibilities include: Strong team building skills
Performs software application maintenance on mission systems running a variety of operating systems to include Solaris, Unix, Linux, Windows, and VMS
Performs routine and preventative maintenance such as general computer tasks, application loads, disk utilization, system loading and system monitoring
Detects, isolates, documents, quickly reports, and resolves system outages, or problems encountered during operations of the operational system baseline, which includes the collections of diagnostic data, restoring the system operation, development of workarounds, and other activities necessary for recovery of a system
Accurately document problems in logging and discrepancy reporting tools
Collect data describing the environment at the time of the failure and perform other activities in support of Tier 3 maintenance provider DR investigation and resolution
Perform system monitoring, analyze and document performance and conduct trend analyses as required
Support system engineering groups as required for ongoing analysis and integration efforts
Environment fluctuates between routine and urgent, depending on ongoing tasks, priorities, and performance of assigned systems
Works directly with the customer in most aspects of the day-to-day activities Benefits: ANS offers excellent compensation along with a generous benefits package to include: Family Medical, Dental (w/ adult orthodontia) and Vision coverage
Pet Discount Program
PTO (Paid Time Off)
Maternity/ Paternity Leave
Supplemental Military Leave Pay
11 Paid Holidays
401(k) plan with 6% Company Contribution
Generous Professional Development Program
100% Employer paid Short- and Long-Term Disability
100% Employer paid Life Insurance
Supplemental Whole Life Insurance
Lucrative Referral Bonus Program
Annual Allowance for ANS Swag
Potential for Paid Overtime
Flexible Work Schedules
Applied Network Solutions, Inc. is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, gender identity, national origin, age or protected veteran status and will not be discriminated against on the basis of disability. As required by local law, Applied Network Solutions, Inc. provides reasonable salary ranges of compensation for work performed in applicable states. Ranges are not a guarantee of compensation and depend on a variety of factors, including but not limited to contractual requirements, work location, years of experience, skill set, and education. Overtime is not guaranteed for this position. The anticipated pay range for this position is $100,000.00 - $200,000.00 USD.
Clearance Type: An active and in-scope TS/SCI with polygraph U.S. security clearance
Qualified applicants may be subject to a security investigation and must meet minimum qualifications for access to classified information
Must have a current DODI 8570.01-M IAT Level II (minimum) Certification (i.e., Security+ CE or equivalent)
Required Education: A University degree and 5 years of relevant experience, OR
A Master's degree and 3 years of relevant experience OR
13 years of related experience in lieu of a degree
Military experience may substitute for some requirements. Military technical certification credit for military experience (*military personnel who have been formally trained or have relevant experience obtained while in service versus civilian training)
Required Skills: Working experience in UNIX or Linux Systems Administration working with customers in technical operations or engineering
Experience configuring domain information utilities, such as Active Directory, Centrify, LDAP, and DNS
Strong background and experience troubleshooting and debugging applications
Experience presenting technical information to customers, clients and/or internal audiences
A thorough understanding of operating system concepts such as swapping and paging, inter-process communication, and devices and device drivers
The ability to work effectively with frequent and direct customer interaction in a real-time operational environment
The ability to work under pressure in restoring high priority systems back to operations
Desired Skills: Ability to navigate, debug, and modify programs in an advanced programming language
Ability to write PERL, python, and shell scripts
Experience with storage products from Oracle/Sun/STK, EMC, IBM, NetApp, and/or DDN
Experience with virtual / cloud computing technologies using Citrix, VMware, and Amazon Web Services (AWS)
Working knowledge of thin-client technologies
Experience designing, implementing, and troubleshooting Public Key Infrastructure (PKI)
Duties and responsibilities include: Strong team building skills
Performs software application maintenance on mission systems running a variety of operating systems to include Solaris, Unix, Linux, Windows, and VMS
Performs routine and preventative maintenance such as general computer tasks, application loads, disk utilization, system loading and system monitoring
Detects, isolates, documents, quickly reports, and resolves system outages, or problems encountered during operations of the operational system baseline, which includes the collections of diagnostic data, restoring the system operation, development of workarounds, and other activities necessary for recovery of a system
Accurately document problems in logging and discrepancy reporting tools
Collect data describing the environment at the time of the failure and perform other activities in support of Tier 3 maintenance provider DR investigation and resolution
Perform system monitoring, analyze and document performance and conduct trend analyses as required
Support system engineering groups as required for ongoing analysis and integration efforts
Environment fluctuates between routine and urgent, depending on ongoing tasks, priorities, and performance of assigned systems
Works directly with the customer in most aspects of the day-to-day activities Benefits: ANS offers excellent compensation along with a generous benefits package to include: Family Medical, Dental (w/ adult orthodontia) and Vision coverage
Pet Discount Program
PTO (Paid Time Off)
Maternity/ Paternity Leave
Supplemental Military Leave Pay
11 Paid Holidays
401(k) plan with 6% Company Contribution
Generous Professional Development Program
100% Employer paid Short- and Long-Term Disability
100% Employer paid Life Insurance
Supplemental Whole Life Insurance
Lucrative Referral Bonus Program
Annual Allowance for ANS Swag
Potential for Paid Overtime
Flexible Work Schedules
Applied Network Solutions, Inc. is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, gender identity, national origin, age or protected veteran status and will not be discriminated against on the basis of disability. As required by local law, Applied Network Solutions, Inc. provides reasonable salary ranges of compensation for work performed in applicable states. Ranges are not a guarantee of compensation and depend on a variety of factors, including but not limited to contractual requirements, work location, years of experience, skill set, and education. Overtime is not guaranteed for this position. The anticipated pay range for this position is $100,000.00 - $200,000.00 USD.
Skills
SAFe
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